Auxiliary telephone base



FIG. 1 is a perspective view of the auxiliary telephone base, showing our new ornamental design;

FIG. 2 is a side elevation thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The electrical battery contacts disposed within the center cavity are shown in broken lines in FIGS. 1 and 5 for illustrative purposes only and do not comprise part of the claimed design. 

The ornamental design for an auxiliary telephone base, as shown and described. 